Identify the sentence in which an adverb clause is underlined.
nomads continue to wander the desert in search of water and food.
although people live in the desert, they are still limited by its harsh climate.
many animals are raised in captivity because the conditions are not as harsh.
much of the desert has a scattered, indigenous population, which explorers sometimes encounter.

Read the corporate document. upon becoming customers of topguide financial group, all clients agree to the following: information provided by employees of topguide financial group is subject to change without notice. any opinions therein are solely those of the author and may not reflect the views of topguide. topguide reserves the right to monitor, retain, and disclose all electronic communications, including email, that pass through its servers and communication systems. which text feature, if added, would best aid the reader’s understanding of this passage? a caption that lists the source of the text a heading that indicates the text’s purpose a graphic that illustrates the information in the text a recipient line that shows the text’s audience